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Analog Electronics

Analog Electronics
Which of the following is trivalent impurity ?

 Antimony
 Boron
 Silicon
None of these

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Analog Electronics
Three difference Q points are shown on a load line. The upper Q point represents the

 intermediate current gain.
 cutoff point.
  maximum current gain.
 minimum current gain.

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Analog Electronics
What will be the Potential barrier for Si Diode ?

 0.7 V
 0.07 V
 0.3 V
 0.05 V

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Analog Electronics
The DC electric current gain in common collector configuration is given by

  β.
  α.
  α - 1.
  β + 1.

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Analog Electronics
The opamp can amplify

  DC signals only.
  AC signals only.
  neither AC not DC signals.
  both AC and DC signals.

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Analog Electronics
The per unit impedance of a synchorous machine is 0.242. If base voltage is increased by 1.1 times, then per unit value will be

 0.242.
 0.220.
  0.200.
 0.266.

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